Seismic Performance Analysis of Steel Frame Structure with Ductile Connections(PDF)
《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]
- Issue:
- 2018年04期
- Page:
- 72-80
- Research Field:
- Publishing date:
Info
- Title:
- Seismic Performance Analysis of Steel Frame Structure with Ductile Connections
- Author(s):
- HAN Ming-lan; WANG Shuai; MOU Zheng; WANG Yan; LIU Dan
- Cooperative Innovation Center of Engineering Construction and Safety in Shandong Blue Economic Zone, Qingdao University of Technology
- Keywords:
- steel frame; simplified model of ductile connection; modal analysis; dynamic time history analysis; seismic performance
- PACS:
- -
- DOI:
- -
- Abstract:
- In order to simplify the numerical calculation of steel frame structure with ductile and energy-dissipated connection, 6-layer and 12-layer frame structures with reduced beam section connections and cover-plate reinforced connections were simplified by using simplified theoretical model of ductile and energy-dissipated connection. The modal analyses of simplified frame model and actual frame model were carried out. The first three fundamental periods of structures were obtained and the damping ratio was calculated. The dynamic time-history analyses of simplified frame model and actual frame model under El Centro seismic wave and Taft seismic wave were carried out respectively. The fundamental period of frame, displacement of column top and shearing force time-history curve of column bottom which were gotten from the simplified frame structure models were compared with numerical results of actual frame models. The results show that numerical results of simplified frame model are consistent with those of actual frame model as a whole. The fundamental periods of frame with reduced beam section connections which are acquired from the simplified structure models are smaller than those of actual structure models, and the relative error is within 8.5%. The fundamental periods of frame with cover-plate reinforced connection which are acquired from the simplified frame models are bigger than those of actual structure models, the relative error is within 4.0%. The displacement time-history curve of column top is in good agreement with that of shearing force of column bottom. It has high computational accuracy when the simplified theoretical model of ductile connections are applied to dynamic calculation of frame structure, so it can effectively analyze the seismic performance of steel frame structure with ductile connections.
Last Update: 2018-07-18